US902875A - Cooling-tower. - Google Patents

Description

B. P. HART, JB.

COOLING TOWER. APPLIOATION TILED 5111111411, 1907.

Patented Nov. 3, 1908. 2 SHEETS-SHEET 1.

B. P. HART,y Jn.

COOLING TOWER.

APPLIUATIOH FILED JUNE 17,1907.

Patented Nov. 3, 1908. Z SHEETS-SHEET 2.

ath-nvm BENJAMIN F. HART, JR., 0F HOBQKEN, NEW JERSEY.

COOLING-TOWER.

Specification of Letters Patent.

Patented Nov, 3, 1908.

Application tiled June 17, 1907. Serial No. 379,514.

To all whom tt may concern:

-Be it known that I, BENJAMIN F. Ham', Jr.,.a citizen. of the United States, residinr at Hoboken, in thc county of Hudson an. State of New Jersey, have invented certain new and useful Improvements in Cooling- Towers, of which the following is a specification.

My invention relates to water towers whose function is to cool water by exposing the same in a more or less finely divided state to the action of the atmosphere for aeration and evaporation. lVater towers of this type hare been constructed wherein a series of shallow pans with specially perforated bottoms are held suspended at suitable distances one above the other and the water being delivered into the topmost one is allowed to drop in line particles from one pan to the next until a collecting' pon at the bottom is reached, it having been in the meantime cooled and aerated by thorough and extended contact with the atmosphere.

In such apparatus it is evident that unless preventive means are employed, considerable quantities ot the water in dripping from one pan to another will be blown entirely out of t e apparatus by currents of air; also `since the `fall between pans is in practice about seven feet, the water in falling into a an will splash to a considerable height, ound by observation to be between two and three feet and thus escaperorn the pan.

, It is the object of the present invention therefore to provide in improved. ap aratus character wherein a novel drm of wind shield which also serves as avspray catcher-is employed, a further object is to rovide a simpleand efficient means where li loss of water 'from splashing is pre vented and the water kept in its downward f course through the tower. j. )thor objects and advantages of my 1in- Qproved construction in detalls will appear 1i-freni the following description of a pre ferretl forni thereof, taken in connection 'with the accompanying; dra wings and the same will finally bc nioreparticularly pointed out in the appended. claims.

Like reference characters desigrmte corre spendingY I'ts in each View. Figure 4is a side elevation showing Aa water tower with my improved device ap plied thereto. Fig. 2 is an end elevation. Fig.` 3 is an enlarged fragmentary detail view partly in section of the top of the ap paratus and showing features of construction which are duplicated in each of the tions. Fig. 4 is a plan View of Fig. 3.

1 is a suitable tower or framework which ma be of various designs in cross section; it is preferably rectangular and may be either square or oblong. This tower will ot' course be suitably braced and it carries a series of dechs to supportthe several pans.

2 is a pipe for supplying the fluid to be cooled to the top of the apparatus; this pipe will Ausually in practice be a discharge conduit imm an ammonia or other condenser. Said pipe has an outlet 3 at the top ofthe tower for discharging into the topmost pan l of the series. The remaining pans 5, 6, 7 and 8 with the final collecting pan 9 are arranged. on the decks of the tower or frame work and spaced apart about seven feet.

A discharge pipe 1,0 conveys the water from the collecting pan 9 bock to the place of use after the saine has been cooled and aerated by the action of the apparatus. The water pans may be 4made of sheet metal and provided with bottoms so perforated and arranged with deflecting flutes or the equivalent thereof as to cause the water in dropping therethrough to be deflected from each si de and converge in the center, thus makinar intersecting streams and still further exposing the particles to atmospheric influence. This type of perforated pan bottom is not claimed herein and hence is not specically illustrated.

My improved wind shield and spray catcher consists of a series ci ,aprons or plates 1l, 12, 13 and 14 alternately disposed upon opposite sides of the tower an extending upwardly and outwardly adjacent the pans shown. It will be observed that a considerable space, in practice about three feet. is left open under the. bottom ot the shield and .that as the shield is deflected outwardly, there is also a large spae between its top and the next upper pan deck.

This space is about four feet in width soV that the sum of '1t and the space underneath approximately equals the 1 stance between 50 'carried by the same 'will he intercepted y a shield and returned 18, around the-outside edge of the cooling the pan decks. These aprons are preferabl constructed of alvanized iron plates an are securel hel in proper position by iron straps as i ustrated at 11.

As ,wilLbe seen by reference to Fig. 3 the lower edge of the aprons or shields are upturned', inwardly so` as to form gutters 15,

and from these leader pipes 16 extend in-` wardly and are arranged to discharge into thenext lower;I pan.

As 'will befap'parent the purpose of this arran ment is to collect the spray thrown against the shields and conduct the same back intothe pans. .4

A ladder `17 may be disposed upon a side of the tower for ready access to the same.

A further feature of importance in the present inventionoonsists in a novel means whereby the splaslungs of the water, falling into a an are retained` therein. and thereby waste om this cause prevented. Since the water falls about seven'feet between pans it will be observed thats lashes will arise to a considerable hei ht w 'ch I have found to be a maximum o about three feet. To retain'this water I provide aline wire screen pans and extend the same up therefrom far .enough to catch all feet as above noted.' hesescreens may be secured in lace by iron aps 18 bolted to the 'sides o the pan.v

I have illustrated b arrows the directions which the currents o air striking the tower are caused to take by my improved wind shield andit will be seen that I have e rovided an arrangement which while ita ows thegreatest freedom of circulation for the air `1n contactwith Athe particles of` water, eiectually revente waste of water by the spraying o the same outside'the apparatus.

It` wi be-seen :that when the wind blows i in the directionas indicated by the arrows tray by 'spouts 16. The

` on'Figls. 1 and 2'the shields'v `11, and,V 13,-'

-sides o 'the' tower adjacent the pans, said catch t e spray'and return tothe next `lower wind strikingfthe shields 12 and. 14 isdellected and rasees downward across the next tray and' ik'es the oppositeshield as indicated. So 'nomatter* wliatdirection` the wind blows the ray to one'ofthe trays.

Having thus descrbedfmyinventwn', what I `claim as new and desireto'secure byv Letters Patent is as follows l 1. A eoolin tower comprising a support ing frameworr, a series of water pans arranged at intervals thereon and having means to discharge from one to another, and

a series of inclined aprons extending up wardly and. outwardly, laterally of said pans, said inclined aprons arranged to l tending upwar lash or about three' leave substantial o enngs above and below the same through t e tower.

2. A coolin tower comprising a supper --y 4ing framewor a series of water pans a adjacent the spaces etween the pans. ,r

3. A cooling tower comprising a supporting framewlor a series. of water pans arranged at" 'intervals thereon and having means to dischar e from one to another, a series of inclined a 4 lprons 4extend ng upwardly and outward y adjacent t e tower,

lgutters formed along the bottoms of 'said aprons, and meansto direct the discharge -from said. tters back into the pans.

4. A coo ingtwer comprising a supporting framewor a series of water pans arranged at intervals thereon said pans being provided with foraminous ottoms, inclined aprons secured alternately to opposite sides o the tower adjacent the pans, said aprons extending upwardly and outwardly and means to direct spray falling upon said aprons back into the pans. A

5. Acoolin vtower comprising a supporting framewor a series of water pans arranged at 4intervals thereon and having means to discharge :from one to another, inclined a rons secured alternately to opposite sides othe tower adjacent the pans, said aprons' extending upwardly and outwardly, n ieal'isV to direct spray falling upon said aprons back `into the pans, and means to prevent loss by splashing of water falling from one pan to. another.

6. A coolingitower comprising a supporting framewor a series of water pans arranged at. intervals thereon and having means to discharge from one to another, inclined a rons secured alternately to opposite about said, ons. Afd V ing'ltmver-comprising a supportlng freinewordt,;a series of water pans` ar- 'l'ange'd" |.t ,intetvals thereon and having means to discharge from one to another, clined a rons secured alternately to opposite sides o the tower adjacent. the pans, said llO aprons extending upwardly and outwardly` means to direct spray falling upon said apgns back into the pans, screens arranged a t the periphery of said pans and ex ly therefrom and flaps to se f ranged at. intervals thereon und cosmo 3 cure said screens in place and fixed lo said pn- 8. A cooli tower comprising u su porting ramewclvllf, a series' of water decis ursupporting puns adapted to dscharge from one to an y@ther und s, series of mclned aprons or shields attached to the outside frnmework of the -tuwer and extending upwardly :mhd

10 outwardly opposite the intervals between said decke;` said aprons or shields being arranged to leave openings above and below same and secured to the tower structure.

In testimon whereof I affix my signature in presenoe o two witnesses.

BENJAMIN F. HART, JH. Witnesses:

WILLIAM H. WHITE, MA'onroE J, BREEN.

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